Heating device



BEST AVAILABLE COP\ Nov. 2 1926.

J. A. MASONICK HEATING DEVICE.

Filed March 15, 1926 BEST AVAILABLE com Patented Nov. 2, 1926.

UNITED, STATES earn Price-J PATENT- HEATING DEVICE.

Application filed March 15, 1926. Serial No. 94,655.

My invention relates .to heating devices, and particularly to a heating device; for maintaining a uniformiidegree of temperature throughout a long period oftime.

One of the objects of my invention is to provide a cheap, simple, and efficient heating device which will confine the combustion of the coal to a certain area in .a furnace, so as to produce a vertical, rather .than a flat, fire bed so that all the heatnnits may-be utilized foriheating, the compartment in-which -the apparatus.isloca'ted. E "1 uniquefeature and object; of my invention is'to provide an apparatusfor the combustion ofa solid: fuel, wherein the burning fuel will be confined in area and to thatarea adjacent the jconduction. wall orlplate or other portion of the furnace to which it .is desired to transmit heat, so that aneffective and efficient c'onsumption'of fuel will be had. In other Words, the area of burning fuel is confined practically to that portion in contact with the conducting Wall plate 'and to that portion of the fuel supplied immediately adjacent such wall or plate.

' And. I have not only. devised novel appa- Iratus, for it will be at once appreciated that a new method of consuming fuel for heating purposes is included. i Thefuel is fed continuously and automatically under its own weight and'inaccor-dance with the-rate of combustion which may be cont-rolled. This method I am aware may be utilized in many other fand differentstructures other than that which is illustrated anddescribed herein; for instance, steamboilers may be adapted to operate in accordance with my method. Another object of my invention is to provide a heating apparatus which can be charged with fuelin-such a manner'that a supply will be available for a period of twenty-four hours or longer, and which supply of fuelwill be automatically fed into the combustion area and'the waste fuel in the form of ashes will .be automatically deposited in a receptacle provided for the same.

Still another object of my invention is to provide a heating device wherein the combustion will take place in the central part of the same, and which combustion point will be almost entirely surrounded by air chamber's, so that there ;cannotbe any possibility of the device overheating to such a degree as to burn-other-articles' in close proximity to the same,'thus insuring a device -which can be left untended after charging, without any fearof the fuel being burnt out or danger from overheating. 4

r A still further object of my inventionis .to provide a heating device of the character described which will be automatically operated and which will be compact in form and 1:

through which the air in the room in which the same is located will be circulated and brought into contact with the heating portion of said device so that an even and constant degree of temperature may .be .maintained in the room throughout the entire time the charge'of fuel insaid heating device isbeing consumed] A further object of my invention is to provide a heating devicewhich will not choke =1 and by reason of the perfect combustion obtained therein will produce absolutely no clinkers. v

In this connection it will be notedthat on account of the method .of feedingthe coal "2;

Theobjects and advantages hereinbefore I:

briefly set. forth will be apparent as will many others, when the device is considered in connection with the following specification, reference being had to the drawings submitted herewith, in which:

Fig. 1 is a transverse sectional view on the line AA of Fig. 2 with aportion-of the bagk, of the heating' device shown in plan, an 1 Fig. 2 is a sectional view on the line 22 of Fig. 1. I

Like symbols of reference herein indicate like parts in both of the figures of the drawmg.

The heating device is built of suitable castings and sheet metal and comprises a base 6 having legs 7 forsupporting the same from the floor, and the flange member 8 at the upper part of said base is adapted to receive the front casting 9. This front casting is provided with a hopper or charging compartment 11 having a gate or door 12 at the upper end of the same which may be opened drop from the combustion chamber. The heating device is provided with side walls 17 and each of these walls, at a position near the front of the same, is provided with bearing plates 18 for forming bearings for trun- 1 is a heating wall 28 and this heating wall is provided'with corrugations 29 immediately at the back of'the revolving grate 21, so that there will be less danger of the fuel H clogging, and thus preventing the air from circulating upwardly from the'ash chamber.

'Thedistanc'e "between the channel bars 23 on the revolving grate 21 and the nearest point of the corrugations'on the heating wall 28is, to give the best results, preferably about l At the upper end of the heating wall 28 there is a flange 31 to which is fastened by bolts or rivets 32 an inclined wall 33,-and this wall 33 has its side flanges 34 extending up to the cover plate 36 and diverging inwardly as shown in Fig. 1 so as to form the circular portion 37 partially surrounding the opening 38 in said cover plate and to which is attached a flue pipe 39 for carryin off the waste products of combustion. NIounted on the'inclined wall 33 are shown two baffle plates 41 and 42, and the arrows in Fig. 1 show the direction which the waste products of combustion must take in order to pass from the furnace into the flue 39. These baffles are for the purpose of confining the heat in the chamber 43 until all the units thereof have been consumed in heating the cool air passing upward through the chamber 44. This chamber 44 is open at the bottom as I have indicated by the numeral 46, and the top plate is provided with gratings or radiator members'47 which extend at each side of the I upwardly extending flanges 34 and through which the air, which has been heated by passing through said chamber 44 and coming in contact with the intermediate or heating wall 38, is discharged into the room in which the furnace is located, and such heated air will immediately rise and will force the cool air in the room downward where it will again enter the chamber 44 through the opening 46 so that a continual flirctiulation of the air in the room will be The hopper 11 has its lower wall 11 inclined as shown in Fig. 2, and an extension BEST AVAILABLE COP\ and thecorrugated heating wall 28 and into the ash chamber 16.

It will thus be seen that my improved heating device is automatic in operation and that a charge of fuel or coal may be placed in the hopper 11 and gravity alone will feed the same to the point at which combustion takes place. ly discharged or expelled from the'combustion chamber and the entire furnace will operate automatically so long as there is fuel in the hopper to rotate the revolving grate 21.

Experiments and commercial use of the invention have proved that a constant temperature may be maintained throughout a period of 24 to 36'hours by this automatic heating device and the only attention required will be to fill the hopper with coal. The length of time required to burn all the coal in the hopper will, of course, depend The ashes will-be automaticallargely upon the grade of coal used, and

while the fuel contemplated to be used in this heating device is bituminous, it will readily be seen that with a good grade of coal or a mixture of hard and soft coal, the length of time between chargings will be greater than in the case of ordinary run of mine coal being used.

By the gravity" feed system herein employed, it has been found that the fire will confine itself to a portion of the combustion chamber 43 along the heating wall 28 so that the fire is always vertical and the fresh fuel being fed into this area will never cover the fire and choke it.

While I have shown and described in detail a preferred embodiment of my invention, it should be manifest that the invention is not limited to the details which have been selected for illustrative purposes mere- 1y, but the invention is capable of being changed and modified widely from that shown and described without departing from the essence of the invention or sacrificing any of its advantages as described in the following claims.

I claim:

1. A heating device comprising a combustion chamber, an ash chamber. a rotary grate between said chambers, and a gravity slide for feeding fuel into said combustion chamber, said grate being rotated by the movement of said fuel for depositing the ashes in said ash chamber.

2. A heating device comprising a combustion chamber, an ash chamber, a .rotary grate between said chambers, projections on said grate, and a gravity slide for feeding fuel against said projections to rotate said grate thereby supplying fuel to the point of combustion and depositing the ashes in said ash chamber.

3. A heating device comprising a combustion chamber havin a heatin wall a ravity feed slide for supplying fuel whereby the combustion of said fuel is maintained in close proximity to said wall, and means operated by the feeding of the fuel for discharging the ash from said chamber.

4. A heating device comprising a combustion chamber having a wall adapted to be heated for indirectly heating a fluid medium, a gravity feed slide for supplying fuel into said chamber, and a rotary grate adjacent said wall and adapted to be rotated by movement of fuel feeding from said slide to automatically convey the fuel into close proximity to said wall.

5. A heating device comprising a combustion chamber having a wall adapted to be heated, an ash chamber, a rotary grate between said chambers, a gravity slide for feeding fuel onto said grate torotate the same whereby said fuel is carried to the place of combustion and the solid products of combustion de osited in said ash chamber, and a secon wall contiguous to and spaced from the first said wall to provide a heating chamber for indirectly heating a fluid heating medium.

6. A heating device comprising a combustion chamber, an ash chamber, a rotary grate between said chambers, a gravity slide for feeding fuel into said combustion chamber, said grate being rotated by the movement of said fuel, thus carrying said fuel to the point of combustion and depositing the ashes in the ash chamber, and bafiies in the upper part of said combustion chamber for confining the heat units therein.

7 A heating device comprising a combustion chamber, an ash chamber, a rotary grate between said chambers, a hopper for charging said furnace having an inclined bottom, an inclined plate in said combustion chamber which together with said inclined bottom forms a gravity feed chute for said fuel. said grate being adapted to be rotated by the movement of said fuel whereby said BEST AVAILABLE COP:

fuel is carried to the desired point of combustion and the ashes deposited in said ash chamber.

8. A heating device comprising a combustion chamber having a substantially vertical wall adapted to be heated, an ash chamber. a rotary grate between said chambers and cooperative with said wall to support fuel therebctween, and a gravity slide cooperative with said rotary grate for feeding fresh fuel toward said wall whereby combustion of the fuel is confined to an area immediately adjacent said wall. a

9. A heating device comprising a combustion chamber having a wall adapted to 'be heated, means for supplying fuel to said chamber, and means for receiving fuel from said supply means, for supporting the same adjacent said wall until burned, and for confining the area of burning fuel to an area immediately adjacent said wall.

10. A heating device comprising a combustion chamber having a wall adapted to be heated for indirectly heating a fluid, an ash chamber beneath said combustion chamber, means for supplying fuel into said chamber, and a grate pivotally supported adjacent and cooperative with said wall for receiving fuel from said supply means and for supporting the fuel above said ash chamber, and movable about its pivot under the influence of the weight of fuel received thereon for dropping solid products of combustion into said ash chamber.

11. A heating device comprising a combustion chamber, a fuel hopper, a rotary grate and means for feeding fuel tangentially to said grate whereby to rotate the same automatically.

12. A heating device comprising a combustion chamber, a substantially cylindrical grate rotatably supported therein, a wall forming a portion of said combustion chamber adjacent said grate at one side thereof, and means substantially opposite said wall for supplying fuel by gravity onto the grate and toward said wall, said wall and grate being constructed, proportioned, and arranged to confine the area of combustion to a place adjacent said wall, and said grate being rotated under the influence of the gravity feed of fuel at a rate to maintain a substantially constant quantity of fuel at said place of combustion.

In witness of the foregoing I afiix my signature.

JOSEPH A. MASONICK. 

